Videotec DTRX1, Operating Instructions Manual

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Page 4 DTRX1 9941
Installation examples
A single operator with several monitors for the control of a set of positioning devices in mixed configuration (star
configuration and cascade - chain configuration)
DEVICES
Control section:
1 DCS2 control keyboard
Video section:
1 SW164OSM video switcher
2 monitors
4 cameras
Telemetry section:
1 DCMX Serial data multiplexer
4 DTRX1 receivers
4 positioning devices
Cables
Different types of stroke have been used in the example, in order to indicate cables with different functions:
video cable:
RG 59 coaxial cable or equivalent cable
multipolar cable:
each control function of the positioning device is activated /deactivated by a relay positioned inside the receiver.
Choose the final numbers of wires according to the following directions:
•
7 wires for the motion of the positioning device (230 V~ or 24 V~): right, left, up, down, autopan, common,
ground (only for 230 V~)
•
6 wires for the control of polarity reversal lenses (zoom, focus, iris)
•
4 wires for the control of common wire lenses (zoom, focus, iris)
•
7 wires for the preset control: 5 wires connected to the reference potentiometers, +5 V
=
and ground
•
4 wires for the wiper
•
3 wires for the washer
•
2 wires for each auxiliary device used
•
3 wires for the power supply cable
Note: We recommend using different multipolar cables for high tension and low tension functions.
Minimum section area recommended:
0.56 mm.² (AWG 20) for high tension wires (positioning device, wiper, washer)
0.34 mm.² (AWG 22) for low tension wires (lens, auxiliary devices, preset)
0.75 mm.² (AWG18) for power supply cable of DTRX1
cable for the digital reception/transmission of commands:
2 wires for the reception from the control unit (twisted telephone pair, section 0.22 mm.² AWG 24)
2 wires for the possible transmission to the next cascade-connected receiver (twisted telephone pair, section 0.22
mm.² AWG 24)
Note: Maximum distance for the connection: about 15 m in RS232; 1500 m in Current Loop; 1200m in RS485.
If many receivers are cascade-connected, it is necessary to use two separated cables for the digital reception and
transmittion of commands (do not use multicouple cable) between the receivers
.
DTRX1 DTRX1 DTRX1 DTRX1
DCS2
SW164OSM
DCMX